Great Planes GPMA1326 User Manual

WARRANTY
Great Planes
®
Model Manufacturing Co. guarantees this kit to be free from defects in both material and workmanship at the date of purchase.This warranty does not cover any component parts damaged by use or modification. In no case shall Great Planes' liability exceed the original cost of the purchased kit. Further, Great Planes reserves the right to change or modify this warranty without notice.
In that Great Planes has no control over the final assembly or material used for final assembly, no liability shall be assumed nor accepted for any damage resulting from the use by the user of the final user-assemb led product.By the act of using the user-assembled product, the user accepts all resulting liability.
If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised to return this kit immediately in new and unused condition to the place of purchase.
READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT WARNINGS AND INSTRUCTIONS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.
GPMZ0282 for GPMA1326 V1.0© Copyright 2003
Champaign, Illinois
(217) 398-8970, Ext 5
airsupport@greatplanes.com
INSTRUCTION MANUAL
Wingspan: 68 in [1727mm] Wing Area: 743 sq in [48 dm2] Weight: 11-1/4 - 12-1/4 lbs [5103 - 5557 g] Wing Loading: 34.9 - 38 oz/sq ft [106 - 116 g/dm2] Length: 45 in [1143mm] Radio: 4 channel with six servos Engine: .91 - 1.08 cu in [15cc - 18cc] two-stroke,1.20 cu in [20 cc] four-stroke
INTRODUCTION................................................................2
Scale Competition..............................................................3
SAFETY PRECAUTIONS..................................................3
DECISIONS YOU MUST MAKE ........................................4
Radio Equipment ................................................................4
Engine Recommendations.................................................4
ADDITIONAL ITEMS REQUIRED.....................................4
Hardware and Accessories................................................4
Adhesives and Building Supplies.......................................4
Covering Tools....................................................................4
Optional Supplies and Tools...............................................4
IMPORTANT BUILDING NOTES.......................................4
ORDERING REPLACEMENT PARTS ...............................5
KIT CONTENTS .................................................................6
PREPARATIONS................................................................7
ASSEMBLE THE FUSELAGE STAND ..............................7
BUILD THE WING..............................................................8
Install the Ailerons..............................................................8
Install the Aileron Servos and Pushrods............................9
Join the Wings..................................................................10
Install the Landing Gear...................................................11
Install the Belly Pan..........................................................13
ASSEMBLE THE FUSELAGE.........................................14
Install the Engine and Throttle Servo...............................14
Install the Fuel Tank .........................................................17
Install the Cowl Ring, Cowl and Dummy Engine..............18
Mount the Stab, Elevator, Rudder and Tailwheel .............22
Install the Elevator and Rudder Servos, Radio System
and Pushrods.........................................................24
Finishing Touches.............................................................28
GET THE MODEL READY TO FLY..................................28
Check the Control Directions ...........................................28
Set the Control Throws.....................................................29
Balance the Model (C.G.).................................................29
Balance the Model Laterally.............................................30
PREFLIGHT.....................................................................30
ENGINE SAFETY PRECAUTIONS.................................31
AMA SAFETY CODE ......................................................31
CHECKLIST.....................................................................32
FLYING.............................................................................32
Fuel Mixture Adjustments.................................................32
Takeoff..............................................................................33
Flight.................................................................................33
Aerobatics ........................................................................33
Engine Out Situation........................................................33
Landing.............................................................................33
ENGINE MOUNT TEMPLATES.......................................35
Since its introduction, the Gee Bee has caught the imagination of the full-scale aviation enthusiast and modelers alike.The full-scale plane was notorious for its unpredictable flight characteristics. Great Planes is proud to introduce our version that has the characteristic look of the full scale Gee
Bee without the unpredictable flight characteristics. You will enjoy flying this impressive model and showing off its aerobatic capabilities to everyone at the field.
For the latest technical updates or manual corrections to the Gee Bee visit the web site listed below and select the Great Planes Gee Bee ARF.If there is new technical information or changes to this model, a “tech notice” box will appear in the upper left corner of the page.
http://www.greatplanes.com/airplanes/index.html
Though the Great Planes Gee Bee is an ARF and may not have the same level of detail as an “all-out” scratch-built competition model, it is a scale model nonetheless and is therefore eligible to compete in the Fun Scale class in AMA competition. (We receive many favorable reports of Great Planes ARFs in scale competition!) In Fun Scale, the “builder of the model” rule does not apply. To receive the five points for scale documentation, the only proof required that a full size aircraft of this type in this paint/markings scheme did exist is a single sheet such as a kit box cover from a plastic model, a photo, or a profile painting, etc. If the photo is in black and white, other written documentation of color must be provided.Contact the AMA for a rule book with full details.
If you would like photos of the full-size Gee Bee for scale documentation, or if you would like to study the photos to add more scale details, photo packs are available from:
Bob's Aircraft Documentation
3114 Y uk on Av e
Costa Mesa, CA 92626
Telephone: (714) 979-8058
Fax:(714) 979-7279
e-mail: www.bobsairdoc.com
1. Your Gee Bee should not be considered a toy, but rather a sophisticated, working model that functions very much like a full­size airplane. Because of its performance capabilities, the Gee Bee, if not assembled and operated correctly, could possibly cause injury to yourself or spectators and damage to property.
2.You must assemble the model according to the instructions. Do not alter or modify the model, as doing so may result in an unsafe or unflyable model. In a few cases the instructions may differ slightly from the photos. In those instances the written instructions should be considered as correct.
3.You must take time to build straight, true and strong.
PRO TECT YOUR MODEL,YOURSELF
& OTHERS...FOLLOW THESE
IMPORTANT SAFETY PRECAUTIONS
Scale Competition
INTRODUCTION
TABLE OF CONTENTS
2
4. You must use an R/C radio system that is in first-class condition and a correctly sized engine and components (fuel tank, wheels, etc.) throughout the building process.
5.You must correctly install all R/C and other components so that the model operates correctly on the ground and in the air .
6.You must check the operation of the model before every flight to insure that all equipment is operating and that the model has remained structurally sound. Be sure to check clevises or other connectors often and replace them if they show any signs of wear or fatigue.
7. If you are not already an experienced R/C pilot, you should fly the model only with the help of a competent, experienced R/C pilot.
8.While this kit has been flight tested to exceed normal use, if the plane will be used for extremely high stress flying, such as racing, the modeler is responsible for taking steps to reinforce the high stress points.
Remember:Take y our time and follow the instructions to end up with a well-built model that is straight and true.
If you have not flo wn this type of model bef ore, we recommend that you get the assistance of an experienced pilot in your R/C club for your first flights.If you're not a member of a club, your local hobby shop has information about clubs in your area whose membership includes experienced pilots.
In addition to joining an R/C club, we strongly recommend y ou join the AMA (Academy of Model Aeronautics). AMA membership is required to fly at AMA sanctioned clubs.There are over 2,500 AMA chartered clubs across the country. Among other benefits, the AMA provides insurance to its members who fly at sanctioned sites and events .Additionally, training programs and instructors are available at AMA club sites to help you get started the right way. Contact the AMA at the address or toll-free phone number below:
Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN 47302-9252
Tele. (800) 435-9262
Fax (765) 741-0057
Or via the Internet at:
http://www.modelaircraft.org
This is a partial list of items required to finish the Gee Bee that may require planning or decision making before starting to build.
4-Channel transmitter and a minimum 4-channel receiver .(A 6-channel computer radio transmitter and receiver ma y offer some mixing functions desirable for this model). 6 - servos, minimum 40 oz-in torque 2 - 12" [305mm] servo extensions 2 - Y-harness connectors 1 - servo reverser for the two elev ator servos (only if you are not able to mix two channels to mov e two servos in the same direction with your computer radio.)
The recommended engine size range for the Gee Bee is .91 to 1.08 two-stroke or 1.20 four-stroke. If an engine in the upper end of the size range is used, remember that this is a scale model that is intended to fly at scale-like speeds, so throttle management should be practiced.
In addition to the items listed in the “Decisions You Must Make” section, following is the list of hardware and accessories required to finish the Gee Bee. Order numbers are provided in parentheses.
Engine and suitable propellers4-channel radio with 6 servos, minimum 40 oz-in torque2 - 12" [300mm] servo extension (HCAM2711 for Futaba
®
)
Y-har ness (HCAM2751 for Futaba)1 - servo reverser for the two elevator servos (only if you
are not able to mix two channels to move two servos in the same direction with your computer radio.)
R/C foam rubber (1/4" [6mm] - HCAQ1000, or 1/2"
[13mm] - HCAQ1050)
3' [900mm] standard silicone fuel tubing (GPMQ4131)Fuel filler valve for glow fuel (GPMQ4160)
Hardware and Accessories
ADDITIONAL ITEMS REQUIRED
Engine Recommendations
Radio Equipment
DECISIONS YOU MUST MAKE
We, as the kit manufacturer, provide you with a top quality kit and instructions, but ultimately the quality and flyability of your finished model depends on how you build it; therefore, we cannot in any way guarantee the performance of your completed model and no representations are expressed or implied as to the performance or safety of your completed model.
3
In addition to common household tools and hobby tools, this is the “short list” of the most important items required to build the Gee Bee.
Great Planes Pro™ CA and Epoxy glue
are recommended.
1 oz. [30g] Thin Pro CA (GPMR6002)1 oz. [30g] Medium Pro CA+ (GPMR6008)Pro 30-minute epoxy (GPMR6047)Pro 6-minute epoxy (GPMR6045)R/C-56 canopy glue (JOZR5007)Microballoons (TOPR1090)Drill bits: 1/16" [1.6mm], 5/64" [2mm], 3/32" [2.4mm], 1/8"
[3.2mm], 9/64" [3.6mm], 5/32" [4mm], 3/16" [4.8mm], 1/4" [6.4mm]
Stick-on segmented lead weights (GPMQ4485)1 Hobby knife (HCAR0105)#11 blades (5-pack, HCAR0211)File
Top Flite
®
MonoKote®sealing iron (TOPR2100)
Top Flite Hot Sock
iron cover (TOPR2175)
Top Flite MonoKote trim seal iron (TOPR2200)Top Flite MonoKote heat gun (TOPR2000)
2 oz. [57g] spray CA activator (GPMR6035)CA applicator tips (HCAR3780)CA debonder (GPMR6039)Epoxy brushes (6, GPMR8060)Mixing sticks (50, GPMR8055)Mixing cups (GPMR8056)Curved-tip canopy scissors for trimming plastic parts
(HCAR0667)
Hobbico
®
Duster™, can of compressed air (HCAR5500)
Masking tape (TOPR8018)Threadlocker thread locking cement (GPMR6060)Denatured alcohol (for epoxy clean up)Switch & Charge Jack Mounting Set (GPMM1000)Rotar y tool such as a Dremel
®
Rotar y tool reinforced cut-off wheel (GPMR8200)Ser vo horn drill (HCAR0698)Dead Center
Engine Mount Hole Locator (GPMR8130)
AccuThrow
Deflection Gauge (GPMR2405)
CG Machine
(GPMR2400)
Laser incidence meter (GPMR4020)Precision Magnetic Prop Balancer
(TOPQ5700)
There are two types of screws used in this kit: Sheet metal screws are designated by a number and a
length. For example #6 x 3/4" [19mm]
This is a number six screw that is 3/4" [19mm] long.
Machine screws are designated by a number, threads per inch and a length. For example 4-40 x 3/4" [19mm]
This is a number four screw that is 3/4" [19mm] long
with forty threads per inch.
When you see the term
test fit
in the instructions, it means that you should first position the part on the assembly without using any glue, then slightly modify or
custom fit
the part as necessar y for the best fit.
Whenever the term
glue
is written you should rely upon your experience to decide what type of glue to use.When a specific type of adhesive works best for that step, the instructions will make a recommendation.
Whenever just
epoxy
is specified you may use
either
30-minute (or 45-minute) epoxy or6-minute epoxy. When 30-minute epoxy is specified it is highly recommended that you use only 30-minute (or 45-minute) epoxy, because you will need the working time and/or the additional strength.
Photos and sketches are placed before the step they refer to. Frequently you can study photos in following steps to get another view of the same parts.
The Gee Bee is factory-covered with Top Flite MonoKote film.Should repairs ever be required, MonoK ote can be patched with additional MonoKote purchased separately. MonoKote is packaged in six-foot rolls, but some hobby shops also sell it by the foot.If only a small piece of MonoKote is needed f or a minor patch, perhaps a fellow modeler would give you some. MonoKote is applied with a model airplane covering iron, but in an emergency a regular iron could be used. A roll of MonoKote includes full instructions for application.Following are the colors used on this model and order numbers for six foot rolls.
Red – TOPQ0201
White – TOPQ0204
The stabilizer and wing incidences and engine thrust angles have been factory-built into this model. However, some technically-minded modelers may wish to check these measurements anyway.T o vie w this information visit the web site at www.greatplanes.com and click on “Technical Data.” Due to manufacturing tolerances which will have little or no effect on the way your model will fly, please expect slight deviations between your model and the published values.
IMPORTANT BUILDING NOTES
Optional Supplies and Tools
Covering T ools
Adhesives and Building Supplies
4
5
If you have never worked with fiberglass there are a few basic things you should be aware of:
1. When you are cutting into fiberglass, be sure you are cutting the correct place. Unlike wood, you are not able to go back and easily fix a mistake.
2.Whenever you are gluing a part to the inside of fiberglass it is important to roughen the inside surface of the fiberglass with 220-grit sandpaper. Then wipe the area with alcohol. The molding process leaves a waxy residue that can pre v ent a good bond between the glue and the parts being glued.
3. If you do not have a high-speed motor tool such as a Dremel®tool, you should consider purchasing one or borrowing one from a fellow modeler. This combined with a fiberglass cut-off wheel is going to be extremely helpful in the assembly process.
WARNING:The cowl, wheel pants and fuselage included in this kit are made of fiberglass, the fibers of which may cause eye, skin and respiratory tract irritation. Never blow into a part to remove fiberglass dust, as the dust will blow back into your eyes.Always wear safety goggles, a particle mask and rubber gloves when grinding, drilling and sanding fiberglass parts. Vacuum the parts and the work area thoroughly after working with fiberglass parts.
IMPORTANT INFORMATION ABOUT WORKING WITH FIBERGLASS
To order replacement par ts for the Great Planes Gee Bee ARF, use the order numbers in the Replacement Parts List that follows. Replacement par ts are available only as listed. Not all parts are available separately (an aileron cannot be purchased separately, but is only available with the wing kit).Replacement par ts are not available from Product Support, but can be purchased from hobby shops or mail order/Internet order firms. Hardware items (screws, nuts, bolts) are also available from these outlets. If you need assistance locating a dealer to purchase par ts, visit www.greatplanes.com and click on “Where to Buy.” If this kit is missing parts, contact Product Support.
Replacement Parts List
Order Number Description How to Purchase
Missing pieces ................................................Contact Product Support
Instruction manual...........................................Contact Product Support
Full-size plans.................................................Not available
Kit parts listed below .......................................Hobby Supplier
GPMA2390 ...........Wing Kit
GPMA2391 ...........Fuselage Kit
GPMA2392 ...........Stabilizer Set
GPMA2393 ...........Rudder
GPMA2394 ...........Landing Gear Set
GPMA2395 ...........Wheel Pants
GPMA2396 ...........Canopy
GPMA2397 ...........Cowl
GPMA2398 ...........Decal Set
ORDERING REPLACEMENT PARTS
0" 1" 2" 3" 4" 5" 6" 7"
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180
Inch Scale
Metric Scale
To convert inches to millimeters, multiply inches by 25.4
6
1 Fuselage 2 Cowl 3 Right Wing and Aileron 4 Left Wing and Aileron 5 Stabilizer and Elevators 6 Rudder 7 Dummy Engine
8 Engine Mount
9 Wheel Pants 10 Cowl Ring (2) 11 Canopy 12 Wire Landing Gear 13 Main Wheels 14 Tail Wheel Assembly
15 Wing Joiners 16 Decal Sheet (2) 17 Pushrods 18 Belly Pan 19 Plywood Ser vo Trays, Battery/Receiver
Tray, and Cowl Mounting Parts
(1) .60 -1.20 Engine mount (left) (1) .60 -1.20 Engine mount (right) (1) Brass EZ Connect (4) 6-32 Blind Nuts (4) 8-32 Blind Nuts (2) 1/4-20 Blind Nuts (5) Nylon Control Horn, Large (1) Nylon Bearing for tail wheel wire (2) 1/4 -20 Nylon bolts (5) Nylon Clevis (2) Flat Nylon landing Gear Straps (1tree of 4) (1) Nylon retainer
(1) 2x9 Hinge material (6) Faslink (5) Silicone Clevis Keeper (4) 6-32 Set Screw (2) 6-32 x 1/4" SHCS (2) 4-40 Set Screw (1) 4-40 x 1/4" SHCS (4) 6-32 x 1/2" SHCS (8) #4 x 5/8 SMS (8) 8-32 x 1" SHCS (34) #2 x 1/2" SMS (3) Heat Shrink Tube
(2) 1/8 Wheel Collar (4) 5/32 Wheel Collar (3) .074 x 17 1/2" wire (3) .074 x 6" wire (4) #6 Flat Washer (8) #8 Lock washer (8) #8 Flat Washer (2) Axles (4) 3 x 51 x 51mm Plywood Plate (4) 3mm Plywood Cowl Mount Tabs (18) 1/8" x 3/4" Aluminum Tube (1) Pilot
Kit Contents (Photographed)
Kit Contents (Not Photographed)
Before starting to build, take an inventory of this kit to make sure it is complete and inspect the parts to make sure they are of acceptable quality. If any parts are missing or are not of acceptable quality, or if you need assistance with assembly , contact Product Support. When repor ting defective or missing parts, use the part names exactly as they are written in the Kit Contents list on this page.
Great Planes Product Support
3002 N. Apollo Drive, Suite 1
Champaign, IL 61822
Telephone: (217) 398-8970
Fax: (217) 398-7721
E-mail: airsupport@greatplanes.com
KIT INSPECTION
1
2
8
9
9
12
13
14
15
11
7
3
5
6
10
4
16
18
19
17
1. If you have not done so already, remove the major parts of the kit from the box and inspect for damage. If any parts are damaged or missing, contact Product Support at the address or telephone number listed in the “Kit Inspection” section on page 6.
2. Remove the tape and separate the ailerons and flaps from the wing and the elevators from the stab. Use a covering iron with a covering sock on high heat to tighten the covering if necessary .Apply pressure over sheeted areas to thoroughly bond the covering to the wood.
Because of the awkward shape of the Gee Bee we have designed a very useful foam cradle for the model. As you have already seen it was used in the shipping box, can be used as an assembly stand and for transporting the Gee Bee to the flying field!
1. Locate the components of the foam cradle.
2.Slide the foam part with the large oval onto one end of
each of the two plastic pipes. Slide the par t with the small oval on the opposite end. This configuration will hold the Gee Bee upright on your workbench and work well for transporting your Gee Bee too!
3. For working on the Gee Bee inverted on the bench,
remove the foam parts from the pipes and replace them with the other two large foam parts. Insert the small cradle extensions onto the bottom of the foam parts.This will provide the additional height required to provide clearance for the vertical fin.The cradle extensions fit snugly into the foam cradle but may loosen with use.You may wish to consider gluing them together with epoxy for a more permanent installation.
Note: At the time this manual was written we had not yet received the foam cradle that is included with this kit so we used a different stand for our construction photographs.
ASSEMBLE THE FUSELAGE ST AND
PREPARATIONS
7
Do the right wing first so your work matc hes the photos the first time through.You can do one wing at a time , or work on them together.
❏❏1. Drill a 3/32" hole, 1/2" deep in the center of each
hinge slot to allow the CA to “wick” in. Follow-up with a #11 blade to clean out the slots. Hint: If you have one, use a high-speed rotary tool to drill the holes.
❏❏2. Use a sharp #11 blade to cut a strip of covering
from the hinge slots in the wing and aileron.
❏❏3.Cut three 3/4" x 1" hinges from the CA hinge strip.
Snip off the corners so they go in easier.
❏❏4.Test fit the ailerons to the wing with the hinges. If
the hinges don't remain centered, stick a pin through the middle of the hinge to hold it in position.
❏❏5. Remove any pins you may have inserted into the
hinges.Adjust the aileron so there is a small gap between the LE of the aileron and the wing.The gap should be small, just enough to see light through or to slip a piece of paper through.
❏❏6. Apply six drops of thin CA to the top and bottom of
each hinge. Do not use CA accelerator. After the CA has fully hardened, test the hinges by pulling on the aileron.
❏❏7. Cut the covering 1/8" [3mm] inside the opening in
the wing for the aileron servo. Use a trim iron to seal the covering to the inner edges of the opening.
❏❏8. On the bottom of the wing, cut the covering from
the two slots for the landing gear.
1" 1"
3/4"
AWAY FROM THE SLOT
CUT THE COVERING
DRILL A 3/32" HOLE
1/2" DEEP, IN CENTER
OF HINGE SLOT
Install the Ailerons
BUILD THE WING
8
❏❏9. On the top of the wing, cut the covering away from
the hole at the wing center section. This hole is for the aileron servo wire to come through, into the fuselage.
❏❏10.Remove the string from inside of the aileron servo
bay and tape it to the wing. Do not pull the string out of the wing!
11. Repeat steps 1-10 for the left wing panel.
❏❏1. Installing the servos in the wing will require the use
of one 12" [305mm] servo extension for each aileron.One Y­harness connector is required and is used to allow the aileron servos to plug into one slot in your receiver.You may have a computer radio that allo ws you to plug the servos into separate slots and then mix them together through the radio transmitter. If you choose to mix them with the radio rather than the Y-harness, refer to the instructions with your particular brand of radio.
❏❏2. Attach the ser vo extension to the aileron servo.
Secure the connectors together using a large piece of heat shrink tubing, tape or other method for securing the connectors together.
❏❏3.Tie the string from inside the wing to the end of the
servo wire. Pull the servo wire through the wing with the string.Feed the servo wire out the hole in the top of the wing center section. Tape the servo wire to the wing to prevent it from falling back into the wing.
❏❏4.Temporarily position the aileron servo into the servo
bay. Drill a 1/16" [1.6mm] hole through the four mounting holes of the servo, drilling through the plywood mounting plate in the wing. Install and remove a servo mounting screw into each of the four holes.Inser t a drop of thin CA into the holes to harden the wood.After the glue has cured, install the servo into the servo bay using the hardware that came with your servo.Center the servo and install a ser vo arm as shown.
❏❏5. Position a large nylon control horn on the aileron,
positioning it as shown in the sketch and aligning it with the
Install the Aileron Servos and Pushrods
9
Correct Incorrect
servo.Mark the location for the screw holes.Drill through the marks you made with a 1/16" [1.6mm] drill bit. (Be sure you are drilling into the plywood plate mounted in the bottom of the aileron. Drill through the plate only. Do not drill all the way through the aileron!) Using a #2 x 1/2" [#2 x 13mm] sheet metal screw , install and then remo v e a scre w into each of the holes.Harden the holes with thin CA.Install the control horn with four #2 x 1/2" [#2 x 13mm] sheet metal screws.
❏❏6. Locate a .074" x 6" [.074" x 152mm] pushrod wire
threaded on one end. Screw a nylon clevis onto the threaded end of the wire 20 turns. Install a silicone clevis keeper onto the clevis.Then, install the clevis on the aileron control horn.
❏❏7. Be sure the aileron servo is centered. Enlarge the
first hole in the servo arm with a Hobbico Servo Horn Drill (or a #48 or 5/64" [2mm] drill bit). Center the aileron and align the wire pushrod with the hole in the end of the servo arm.Using a marker, mark the location where the wire aligns with the hole in the servo arm. On that mark make a 90 degree bend. From the bend measure an additional 3/16" [4.8mm] and then cut off the excess pushrod wire.
❏❏8. Install the wire into the hole in the servo arm using
a nylon FasLink™as shown in the sketch.
9. Repeat steps 1-8 for the left wing panel.
1.Locate the three hardwood wing joiners.Using 5-minute
epoxy, glue them together forming one 1/4" [6mm] wing joiner.
2. Test fit the wing joiner into each wing panel, making
sure that it is not too tight. Sand the joiner as needed to get a good fit.
3.Apply 30-minute epoxy to both sides of the wing joiner , the
joiner pocket in both wing panels and to the root rib of each wing panel. Push the wing panels together and hold them in place with masking tape.Before the glue cures, set the wing flat on your bench and measure the dihedral.The distance from the top of the bench to the center of the wing as measured at the wingtip should be approximately 6" [152mm].Block the wingtip up while the glue cures.
Note: Due to production techniques there may be some variance in the actual dihedral of each model. Our prototypes flew well with the dihedral anywhere between 5-3/4" and 6-1/4" [146mm and 159mm].
4. Set the wing aside allowing the glue to cure.
Join the Wings
FasLink
2-56 (.074") Pushrod Wire
Servo Horn
10
6"
Workbench
5. Locate the 1/4" [6mm] holes under the covering at the
trailing edge of the wing center section. Cut the covering away on both the top and bottom of the wing.
6.Trial fit the wing to the fuselage with two 1/4 - 20 nylon
wing bolts.After fitting the wing, remove it from the fuselage.
❏❏1. Locate the wire landing gear. Insert the r ight gear
into the slots in the bottom of the wing. When properly inserted the landing gear has a forward rack.
❏❏2. Position four nylon landing gear straps over the
landing gear wire. Using the measurements shown in the
photo, mark the location for the screw holes.
Note: It is important that the straps are located as shown or they could interfere with the installation of the wheel pants.
Drill a 1/16" [1.6mm] hole through the marks, drilling through the hardwood rail under the covering.Inser t a #2 x 1/2" [13mm] screw into each of the holes you have drilled and then remove it.Put a couple of drops of thin CA into the holes to harden the wood and allow the glue to cure. Install each of the landing gear straps over the landing gear wire with #2 x 1/2" [13mm] sheet metal screws.
❏❏3. Locate the right side wheel pant.
Note: If you
examine the base of the two wheel pants you will see that there is a definite difference in the angle of the base of the wheel pant.This is to accommodate the dihedral in the wing. Be sure you mount the correct pant to each side of the wing.
❏❏4. Slide the wheel pant over the landing gear wire.
Locate the axle, a 6-32 x 1/2" socket head cap screw and a wheel. Insert the 6-32 socket head cap screw into the axle.
Slide the wheel over the axle.Temporarily tighten the axle to the landing gear wire.Having the wheel in position will assist you in locating the proper position for the wheel pant.
Install the Landing Gear
11
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